A. oil coking
B. dust accumulation
C. insufficient pressure
D. temperature is too high
Answer: A
Analysis: Coking oil will block the optical path system of the laser welding machine, resulting in a single maintenance cost of more than 500,000 yuan.
Answer: Follow the manufacturer’s instructions for pipe sizing, connections, and routing.
Answer: The discharge capacity ranges from [A] to [B] m³/min.
A. Oil injection air compressor B. Oil-free air compressor C. Both can be D. The answer cannot be determined: B Analysis: The semiconductor manufacturing industry has extremely high requirements for the purity of compressed air, so oil-free air compressors are usually chosen.
Answer: It consumes less energy and operates more efficiently, resulting in lower operating costs.
Answer: It can monitor parameters such as discharge pressure, temperature, motor current, and lubrication water level.